Abstract In the special teaching activity of experimental inquiry with “Mg+H2O” reaction system as the core, the experimental scheme was designed by variable control method, the reasons and control conditions for accelerating the “Mg+H2O” reaction rate were explored at multiple levels by means of conventional experiments and digital experiments. In hierarchical teaching activities, students’ ability to design experimental schemes by variable control method was developed step by step, the understanding angle of factors affecting chemical reaction rate was widened, and students’ experimental inquiry ability was diagnosed and developed through the evaluation of activity links.
SUN Mo, ZHENG Xiao-Hong. Application and Evaluation of Control Variable in Experimental Inquiry Teaching of Mg+H2O Reaction System[J]. Chinese Journal of Chemical Education, 2022, 43(13): 102-108.
